Asked by Phuong Nguyen on May 12, 2024
Verified
Indicate the statement that describes respiratory function in a highly trained athlete at maximal exercise.
A) Unchanged minute ventilation; increased respiratory rate; decreased vital capacity
B) Increased residual volume; increased respiratory rate; decreased alveolar ventilation
C) Increased tidal volume; unchanged minute ventilation; unchanged alveolar ventilation
D) Increased minute ventilation; increased alveolar ventilation; unchanged tidal volume
E) Increased tidal volume; increased minute ventilation; increased alveolar ventilation
Minute Ventilation
The total volume of air entering and leaving the lungs per minute.
Alveolar Ventilation
The exchange of gas between the lungs and the external environment, specifically the movement of air into and out of the alveoli.
Respiratory Rate
The number of breaths a person takes per minute; a vital sign that reflects breathing rate and is an indicator of a person's respiratory health.
- Explain the mechanism and significance of gas exchange within the respiratory system.
Verified Answer
JD
James DionisioMay 15, 2024
Final Answer :
E
Explanation :
During maximal exercise, a highly trained athlete experiences increased tidal volume (the amount of air moved in or out of the lungs per breath), increased minute ventilation (the total volume of air inhaled or exhaled per minute), and increased alveolar ventilation (the amount of air reaching the alveoli per minute for gas exchange). These adaptations enhance the body's ability to intake oxygen and expel carbon dioxide, meeting the increased metabolic demands of maximal exercise.
Learning Objectives
- Explain the mechanism and significance of gas exchange within the respiratory system.